<snapdata remixID="9306567"><project name="M6L4-brickwall_starter" app="Snap! 5.4, http://snap.berkeley.edu" version="1"><notes></notes><thumbnail>data:image/png;base64,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</thumbnail><stage name="Stage" width="480" height="360" costume="0" color="255,255,255,1" tempo="60" threadsafe="false" penlog="false" volume="100" pan="0" lines="flat" ternary="true" codify="false" inheritance="false" sublistIDs="false" scheduled="false" id="1"><pentrails>data:image/png;base64,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</pentrails><costumes><list struct="atomic" id="2"></list></costumes><sounds><list struct="atomic" id="3"></list></sounds><variables></variables><blocks></blocks><scripts></scripts><sprites><sprite name="Sprite" idx="1" x="15.9999999999999" y="-140.00000000000045" heading="90" scale="1" volume="100" pan="0" rotation="1" draggable="true" costume="0" color="145,26,68,1" pen="tip" id="8"><costumes><list struct="atomic" id="9"></list></costumes><sounds><list struct="atomic" id="10"></list></sounds><blocks></blocks><variables></variables><scripts><script x="20" y="20"><custom-block s="draw brick, length: %n width: %n"><l>30</l><l>10</l></custom-block></script><script x="20" y="59"><custom-block s="row a"></custom-block></script><script x="20" y="95"><custom-block s="row b"></custom-block></script><script x="20" y="131"><custom-block s="draw brick wall with %s rows"><l>7</l></custom-block></script><script x="20" y="170"><block s="doGlide"><l>1</l><l>-200</l><l>0</l></block></script><script x="20" y="209"><block s="clear"></block></script></scripts></sprite></sprites></stage><hidden></hidden><headers></headers><code></code><blocks><block-definition s="set flag %&apos;which&apos; to %&apos;tf&apos;" type="command" category="sensing"><header></header><code></code><translations></translations><inputs><input type="%s" readonly="true"><options>Presentation mode&#xD;Retina display support&#xD;Long form input dialog&#xD;Plain prototype labels&#xD;Input sliders&#xD;Execute on slider change&#xD;Clicking sound&#xD;Turbo mode&#xD;Flat design&#xD;Keyboard editing&#xD;Table support&#xD;Table lines&#xD;Visible stepping&#xD;Thread safe scripts&#xD;Prefer smooth animations&#xD;Flat line ends&#xD;Codification support&#xD;Inheritance support</options></input><input type="%b"></input></inputs><script><block s="doRun"><block s="reportJSFunction"><list><l>which</l><l>tf</l></list><l>var   stage = this.parentThatIsA(StageMorph),&#xD;        ide = stage.parentThatIsA(IDE_Morph),&#xD;        world = stage.parentThatIsA(WorldMorph);&#xD;&#xD;if (tf != !!tf) return;&#xD;&#xD;try{&#xD;ide.savingPreferences = false;&#xD;&#xD;switch (which) {&#xD;    case &apos;Presentation mode&apos;:&#xD;        if (tf != ide.isAppMode) ide.toggleAppMode();&#xD;        break;&#xD;    case &apos;Retina display support&apos;:&#xD;        if (tf != isRetinaEnabled()) ide.toggleRetina();&#xD;        break;&#xD;    case &apos;Long form input dialog&apos;:&#xD;        if (tf != InputSlotDialogMorph.prototype.isLaunchingExpanded)&#xD;            ide.toggleLongFormInputDialog();&#xD;        break;&#xD;    case &apos;Plain prototype labels&apos;:&#xD;        if (tf != BlockLabelPlaceHolderMorph.prototype.plainLabel)&#xD;            ide.togglePlainPrototypeLabels();&#xD;        break;&#xD;    case &apos;Input sliders&apos;:&#xD;        MorphicPreferences.useSliderForInput = tf;&#xD;        break;&#xD;    case &apos;Execute on slider change&apos;:&#xD;        ArgMorph.prototype.executeOnSliderEdit = tf;&#xD;        break;&#xD;    case &apos;Clicking sound&apos;:&#xD;        if (tf != !!BlockMorph.prototype.snapSound)&#xD;            BlockMorph.prototype.toggleSnapSound();&#xD;        break;&#xD;    case &apos;Turbo mode&apos;:&#xD;        if (tf != stage.isFastTracked)&#xD;            ide.toggleFastTracking();&#xD;        break;&#xD;    case &apos;Flat design&apos;:&#xD;        if (tf == MorphicPreferences.isFlat) break;&#xD;        if (tf)&#xD;            ide.flatDesign();&#xD;        else&#xD;            ide.defaultDesign();&#xD;        break;&#xD;    case &apos;Keyboard editing&apos;:&#xD;            ScriptsMorph.prototype.enableKeyboard = tf;&#xD;        break;&#xD;    case &apos;Table support&apos;:&#xD;            List.prototype.enableTables = tf;&#xD;        break;&#xD;    case &apos;Table lines&apos;:&#xD;                TableMorph.prototype.highContrast = tf;&#xD;        break;&#xD;    case &apos;Visible stepping&apos;:&#xD;        if (tf != Process.prototype.enableSingleStepping)&#xD;            ide.toggleSingleStepping();&#xD;        break;&#xD;    case &apos;Thread safe scripts&apos;:&#xD;        stage.isThreadSafe = tf;&#xD;        break;&#xD;    case &apos;Prefer smooth animations&apos;:&#xD;        if (tf != (StageMorph.prototype.frameRate &gt; 0))&#xD;            ide.toggleVariableFrameRate();&#xD;        break;&#xD;    case &apos;Flat line ends&apos;:&#xD;        SpriteMorph.prototype.useFlatLineEnds = tf;&#xD;        break;&#xD;    case &apos;Codification support&apos;:&#xD;        if (tf != StageMorph.prototype.enableCodeMapping) {&#xD;            StageMorph.prototype.enableCodeMapping = tf;&#xD;            ide.currentSprite.blocksCache.variables = null;&#xD;            ide.currentSprite.paletteCache.variables = null;&#xD;            ide.refreshPalette();&#xD;        }&#xD;        break;&#xD;    case &apos;Inheritance support&apos;:&#xD;        if (tf != StageMorph.prototype.enableInheritance) {&#xD;            StageMorph.prototype.enableInheritance = tf;&#xD;            ide.currentSprite.blocksCache.variables = null;&#xD;            ide.currentSprite.paletteCache.variables = null;&#xD;            ide.refreshPalette();&#xD;        }&#xD;        break;&#xD;};&#xD;}&#xD;finally {&#xD;ide.savingPreferences = false;&#xD;};&#xD;</l></block><list><block var="which"/><block var="tf"/></list></block></script></block-definition><block-definition s="draw brick, length: %&apos;length&apos; width: %&apos;width&apos;" type="command" category="pen"><header></header><code></code><translations></translations><inputs><input type="%n"></input><input type="%n"></input></inputs><script><block s="setColor"><color>145,26,68,1</color></block><custom-block s="set flat line ends to %b"><block s="reportBoolean"><l><bool>true</bool></l></block></custom-block><block s="setSize"><block var="width"/></block><block s="down"></block><block s="forward"><block var="length"/></block><block 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s="setXPosition"><l>-200</l></block><custom-block s="row b"></custom-block><block s="changeYPosition"><l>-40</l></block></script></block></script></block-definition><block-definition s="row a" type="command" category="pen"><header></header><code></code><translations></translations><inputs></inputs><script><block s="doRepeat"><l>6</l><script><custom-block s="draw brick, length: %n width: %n"><l>30</l><l>10</l></custom-block><block s="forward"><l>6</l></block></script></block></script></block-definition><block-definition s="row b" type="command" category="pen"><header></header><code></code><translations></translations><inputs></inputs><script><block s="forward"><l>6</l></block><custom-block s="draw brick, length: %n width: %n"><l>12</l><l>10</l></custom-block><block s="forward"><l>6</l></block><block s="doRepeat"><l>5</l><script><custom-block s="draw brick, length: %n width: %n"><l>30</l><l>10</l></custom-block><block s="forward"><l>6</l></block></script></block><custom-block s="draw 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